Jorge Chavez was tossed from Manorwood Stables' Whataboutus prior to the first race at Saratoga Friday, then rode the 2-year-old Clever Trick filly to a 2 1/4-length victory before taking off the rest of his mounts on the day. Chavez took off is Saturday mounts with a bruised knee but may ride Sunday, according to his agent, Richard dePass.Chavez was preparing to ride Carpe Demon in the second race when the pain became too much as he was to be given a leg up on the horse. He was taken from the paddock in a wheelchair. X-rays taken came back negative, according to dePass."Everything came back negative," DePass said. "No fractures, no torn ligaments. His doctor thought it would be best to take the day off. We're going to see him tomorrow morning. There's a good chance he'll give us the okay (to ride.)"Chavez, was third in the jockey standings at Saratoga with 13 victories after Friday.In the second race Friday, Norberto Arroyo Jr. filled in for Chavez and guided Barbara J. Davis' Carpe Demon to a fourth-place finish on a sloppy track.